Kawasaki KG-12 vs Mitsubishi 18KU30GSI
The Kawasaki KG-12 and Mitsubishi 18KU30GSI are both natural gas generator engines in a similar power class. The Mitsubishi 18KU30GSI is the higher-output unit (7,188 kVA vs 6,500 kVA). Displacement is 407.2 L versus 483.5 L. The table below compares their full specifications side by side.
| Specification | Kawasaki KG-12 | Mitsubishi 18KU30GSI |
|---|---|---|
| Headline rating | 6,500 kVA | 7,188 kVA |
| Standby (50 Hz) | — | — |
| Prime (50 Hz) | 5,200 kWe | 5,750 kWe |
| Standby (60 Hz) | — | — |
| Prime (60 Hz) | 5,000 kWe | — |
| Displacement | 407.2 L | 483.5 L |
| Configuration | V12 | L18 |
| Cylinders | 12 | 18 |
| Rated speed | 750 / 900 RPM | 750 RPM |
| Fuel | Natural Gas | Natural Gas |
| Cooling | Liquid-Cooled | Liquid-Cooled |
| Emissions | Unregulated | — |
| Dry weight | — | 60000 kg |
| Origin | Japan | Japan |
Choosing between Kawasaki KG-12 and Mitsubishi 18KU30GSI
Use this comparison as an engineering shortlist, then confirm the complete generator package against load profile, voltage, 50/60 Hz frequency, duty class, emissions rules, cooling margin, altitude, ambient temperature, enclosure design, controller features, and alternator sizing. The Mitsubishi 18KU30GSI has the higher headline kVA rating in this pair, but site conditions and duty cycle can still change the final recommendation.